HVDCCigre

Synchronous machine equation

卡方检验用来检验分布的拟合性 比如正太分布对数正太分布高斯分布瑞利分布，韦伯分布等里面包含了对数据的检测以及统计的原理和方法(The chi-square test used to test the The chi-square test used to test the distribution fitting, such as too the distribution of the lognormal distribution is too Gauss points Burui Li distribution, Weibull distribution, which contains the principles and methods of detection and statistical data)

三种方法辨识对象模型，内含详细讲解 运行方法： 修改当前路径为此文件夹；点击main.m运行老师给的数据，点击main2.m自动生成数据；弹出gui对话框，选择辨识方法。 (Three kinds of method to identify the object model, including a detailed explanation Operation method: Modify the current path to the folder click main.m to run the teacher to the data, the automatic generation of data and click the main2.m GUI dialog box pops up, the identification method.)

重点参考文章！ PA Mazen 2002 Performance analysis of two-hop relayed transmission over rayleigh fading channels 介绍无线中继的文章 比较适合入门的同学 而且内附matlab代码 可以仿真做出全部结果(Key reference articles! PA Mazen 2002 Performance analysis of two-hop relayed transmission over rayleigh fading channels introduce wireless repeater articles for starters students with full simulation matlab code can make all results)

基于matlab的OFDM仿真程序； 我再论坛找了很多OFDM的代码和文章,但总有遗患,为什么呢原因是大部分只有简单的映射,IDFTDFT变换等等,但主要的同步和信道估计去没有人提出来,甚至做出来.. 现在我终于找到了一份,它以FUNCTION的形式,再现了OFDM映射,IDFTDFT,同步(时间频率同步)和信道估计,以及频率偏移的估计等一系列代码.(Based on the OFDM matlab simulation program I' ll find a lot of forums and articles OFDM code, but there are left suffering, why because most only simple mapping, IDFTDFT transformation, etc., but the main synchronization and channel estimation to no one proposed, and even do it .. and now I finally found a copy of it in the form FUNCTION, Reproduction of OFDM mapping, IDFTDFT, synchronous (time and frequency synchronization) and channel estimation, and the estimated frequency offset a series of code.)

这是一个利用遗传算法来求解非线性方程组的经典案例，有助于学习好这种新的算法(A program on the understanding of nonlinear equations solved using genetic algorithms)

说明：  自适应中值滤波器的滤波方式和传统的中值滤波器一样,都使用一个矩形区域的窗口Sxy,不同的是在滤波过程中,自适应滤波器会根据一定的设定条件改变(即增加)滤窗的大小,同时当判断滤窗中心的像素是噪声时,该值用中值代替,否则不改变其当前像素值,这样用滤波器的输出来替代像素(x,y)处(即目前滤窗中心的坐标)的值。(Adaptive Median Filter for filtering methods and the same as the traditional median filter, use a rectangular area of the window Sxy, different in the filtering process, the adaptive filter in on certain Presumed Conditions change (an increase of ) filter window size, while when the judge is the filter window center pixel noise, the median value is used instead of, or does not change its current pixel value, so that the output with a filter to replace the pixels (x, y) Office (that is, coordinates of the current filter window centered) values.)

MATLAB常用函数参考，包含了通用命令、运算符和特殊运算符、编程语言结构、基本矩阵函数和操作、基本数学函数、坐标变换、向量运算等特殊函数等常用函数的说明。(MATLAB function reference，it contains the common commands, operators and special operators, programming languages, basic matrix functions and operators, basic math functions, coordinate transformations, vector operations, and other special functions.)

matlab教程，包含数学运算、函数调用及编程、图形绘制等详细讲解(Matlab tutorial, including mathematics, function calls and programming, graphics drawing in detail)

阀值去噪 用db1小波对原始信号进行3层分解并提取系数(Db1 wavelet threshold de-noising with the original signal decomposition and extraction coefficient of 3 layers)